GB201804691D0 - Mitigating optical modulator impairment for coherent optical communication systems - Google Patents

Mitigating optical modulator impairment for coherent optical communication systems

Info

Publication number
GB201804691D0
GB201804691D0 GBGB1804691.2A GB201804691A GB201804691D0 GB 201804691 D0 GB201804691 D0 GB 201804691D0 GB 201804691 A GB201804691 A GB 201804691A GB 201804691 D0 GB201804691 D0 GB 201804691D0
Authority
GB
United Kingdom
Prior art keywords
impairment
communication systems
mitigating
optical communication
coherent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GBGB1804691.2A
Other versions
GB2562857A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Google LLC
Original Assignee
Google LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Google LLC filed Critical Google LLC
Publication of GB201804691D0 publication Critical patent/GB201804691D0/en
Publication of GB2562857A publication Critical patent/GB2562857A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H04B10/516—Details of coding or modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H04L27/3818—Demodulator circuits; Receiver circuits using coherent demodulation, i.e. using one or more nominally phase synchronous carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
    • H04B10/0795—Performance monitoring; Measurement of transmission parameters
    • H04B10/07953—Monitoring or measuring OSNR, BER or Q
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
    • H04B10/0799—Monitoring line transmitter or line receiver equipment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2507—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
    • H04B10/2513—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to chromatic dispersion
    • H04B10/25133—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to chromatic dispersion including a lumped electrical or optical dispersion compensator
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H04B10/516—Details of coding or modulation
    • H04B10/5161—Combination of different modulation schemes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H04B10/516—Details of coding or modulation
    • H04B10/548—Phase or frequency modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/60—Receivers
    • H04B10/61—Coherent receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/60—Receivers
    • H04B10/61—Coherent receivers
    • H04B10/616—Details of the electronic signal processing in coherent optical receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/60—Receivers
    • H04B10/61—Coherent receivers
    • H04B10/616—Details of the electronic signal processing in coherent optical receivers
    • H04B10/6165—Estimation of the phase of the received optical signal, phase error estimation or phase error correction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
    • H04L1/0038—Blind format detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
    • H04L1/206—Arrangements for detecting or preventing errors in the information received using signal quality detector for modulated signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0024—Carrier regulation at the receiver end
    • H04L2027/0026—Correction of carrier offset
    • H04L2027/003—Correction of carrier offset at baseband only

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Quality & Reliability (AREA)
  • Optical Communication System (AREA)
GB1804691.2A 2017-05-01 2018-03-23 Mitigating optical modulator impairment for coherent optical communication systems Withdrawn GB2562857A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15/583,862 US10484230B2 (en) 2017-05-01 2017-05-01 Mitigating optical modulator impairment for coherent optical communication systems

Publications (2)

Publication Number Publication Date
GB201804691D0 true GB201804691D0 (en) 2018-05-09
GB2562857A GB2562857A (en) 2018-11-28

Family

ID=61911667

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1804691.2A Withdrawn GB2562857A (en) 2017-05-01 2018-03-23 Mitigating optical modulator impairment for coherent optical communication systems

Country Status (7)

Country Link
US (2) US10484230B2 (en)
EP (2) EP3399710B1 (en)
CN (2) CN108809434B (en)
DE (2) DE202018101554U1 (en)
GB (1) GB2562857A (en)
TW (2) TWI756622B (en)
WO (1) WO2018203971A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6288143B2 (en) * 2015-10-19 2018-03-07 日本電信電話株式会社 Coherent optical receiver
CN109274626B (en) * 2018-11-21 2020-11-13 电子科技大学 Modulation identification method based on constellation diagram orthogonal scanning characteristics
US10778337B1 (en) * 2019-05-17 2020-09-15 Google Llc Phase noise tolerant coherent modulation formats for short reach optical communication systems
US10979148B1 (en) 2019-11-06 2021-04-13 Google Llc Coherent receiver with mixed signal processing
CN112260726B (en) * 2020-10-10 2022-03-29 上海擎昆信息科技有限公司 Signal detection method and device, electronic equipment and readable storage medium
JP7397828B2 (en) * 2021-07-26 2023-12-13 アンリツ株式会社 Receiving device, receiving method, and mobile terminal testing device equipped with the receiving device
JPWO2023037403A1 (en) * 2021-09-07 2023-03-16
CN115021827B (en) * 2022-05-16 2023-05-09 烽火通信科技股份有限公司 Phase angle locking method and system of coherent receiver

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6252912B1 (en) * 1997-12-24 2001-06-26 General Dynamics Government Systems Corporation Adaptive predistortion system
US7197090B1 (en) 1999-01-29 2007-03-27 Northrop Grumman Corporation Adaptive decision regions and metrics
US6661852B1 (en) 1999-07-21 2003-12-09 Raytheon Company Apparatus and method for quadrature tuner error correction
US7567631B2 (en) * 2003-09-12 2009-07-28 Neil Birkett Method for amplitude insensitive packet detection
CN101515844B (en) * 2009-01-20 2012-01-18 重庆无线绿洲通信技术有限公司 Efficient multi-user multielement parallel transmission method and device
US8295714B2 (en) * 2009-12-18 2012-10-23 Alcatel Lucent Receiver algorithms for coherent detection of polarization-multiplexed optical signals
US9203682B2 (en) 2010-09-07 2015-12-01 Alcatel Lucent Frequency-dependent I/Q-signal imbalance correction coherent optical transceivers
US8908809B2 (en) * 2010-12-15 2014-12-09 At&T Intellectual Property I, L.P. Complexity reduced feed forward carrier recovery methods for M-QAM modulation formats
US8897655B2 (en) 2012-06-18 2014-11-25 Alcatel Lucent Adaptive constellations and decision regions for an optical transport system
GB201313389D0 (en) * 2013-07-26 2013-09-11 Atlantic Inertial Systems Ltd Signal processing
JP6156807B2 (en) 2013-11-15 2017-07-05 国立研究開発法人産業技術総合研究所 Received signal processing apparatus, communication system, and received signal processing method
CN105573422A (en) 2014-10-14 2016-05-11 联咏科技股份有限公司 In-phase component and orthogonal component inversion detector and method
CN105721374B (en) * 2015-12-22 2019-08-30 中国电子科技集团公司第五十研究所 Carrier synchronization is used for 8PSK vector analysis method

Also Published As

Publication number Publication date
EP3614636A1 (en) 2020-02-26
US10484230B2 (en) 2019-11-19
CN108809434B (en) 2021-04-30
EP3399710A1 (en) 2018-11-07
US20180316541A1 (en) 2018-11-01
CN108809434A (en) 2018-11-13
CN113114372A (en) 2021-07-13
TWI687060B (en) 2020-03-01
EP3614636B1 (en) 2023-09-27
TW202027439A (en) 2020-07-16
GB2562857A (en) 2018-11-28
TW201842741A (en) 2018-12-01
DE202018101554U1 (en) 2018-06-15
US11082280B2 (en) 2021-08-03
US20200036568A1 (en) 2020-01-30
DE102018106553A1 (en) 2018-11-08
WO2018203971A1 (en) 2018-11-08
EP3399710B1 (en) 2019-12-04
TWI756622B (en) 2022-03-01

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